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(parent: 9ee3e4a) | patch
xfs: fix acl count validation in xfs_acl_from_disk()
authorXi Wang <xi.wang@gmail.com>
Mon, 12 Dec 2011 21:55:52 +0000 (21:55 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 12 Jan 2012 19:40:13 +0000 (11:40 -0800)
commit3c7af5a9c728fca26e90b7b58d1deb7ce4e59b45
treee197c8677161e040e537ac2d247190de6c9f0a0btree | snapshot
parent9ee3e4ab17e3670a46b24502394eb24d68a85f9bcommit | diff
xfs: fix acl count validation in xfs_acl_from_disk()

commit 093019cf1b18dd31b2c3b77acce4e000e2cbc9ce upstream.

Commit fa8b18ed didn't prevent the integer overflow and possible
memory corruption.  "count" can go negative and bypass the check.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/xfs/linux-2.6/xfs_acl.c diff | blob | history
unionfs2-2.6.39.y